Friction-clutch.



PATENTED AUG. 14, 1906.

G. E. TURNER.

FRICTION CLUTCH.

APPLICATION TILED snrmzs, 1904.

SMUGMtoz N Ej witnesses a .3. Q5 gm STAKES PATENT OFFICE.

GEORGE E. TURNER, OF BELLEFONTAINE, OHIO, ASSIGNOR TO THE BELLEFONTAINEFOUNDRY & MACHINE COMPANY, OF BELLE- FONIAINE, OHIO, A CORPORATION OFOHIO.

Specification of Letters Patent.

Eaizntcl. 14, 1906.

implication filed September 26. 1904. Serial No. 226.086.

T (I/H/ whom, it may (on/067%.-

Be it known that I, GEORGE E. TURNER, a citizen of the United States,residing at Bellefontaine, in the county of Logan and State of Ohio,have invented certain new and useful Improvements in Friction-Clutches,of which the following is a specification.

My invention relates to improvements in era-ted either by hand or bypower.

My invention consists of the means, mechanism, construction, and mode ofoperation hereinafter described, and set forth in the claim.

In the drawings, Figure 1 is a side elevation of the clutch and itsoperating parts. Fig. 2 is an end view of the clutch. Figs. 3 and 4 aresectional detail views. Fig. 5 is a view showing a modified form ofoperating mechanism.

Like parts are indicated by similar characters of reference throughoutthe several views.

a is a spur-gear keyed upon a shaft A and constituting the drivingmember. a is a drum loosely mounted on the shaft A and constitutes thedriven member. The shaft A is provided with a bearing in a support A.The drum a is formed with a head having a friction-surface a aroundwhich extends a strap or friction brake-band a adapted to be tightenedor loosened by the operation of a pivoted lever a through the medium ofa flexible cable a all of which mechanism is fully described in myaforesaid application.

The essential feature of my present application consists in the meansfor tightening the flexible cable a whereby the pivoted lever a, andthereby the clutch mechanism, is operated, and is as follows:

6 is a projecting hub upon the spur-gear a, slotted on one side andhaving journaled in said slot a sheave I), over which the flexible cablea is carried from a sheave a.

The shaft A is formed with a pocket or mortise b adapted to registerwith the slot of the hub I), and into this pocket or mortise extends thesheave b, as shown in Fig. 3. The shaft A is further provided with alongi- 'tudinal bore b extending from said mortise b to the end of theshaft. A sleeve or thimble 0 is secured. on the shaft A by the key 6 androtates therewith, but is permitted a lon gitudinal movement thereon. Alever 0 pivoted upon a stationary portion of the frame, preferably theportion 0/, and engag ing a split collar 0 upon the sleeve 0, providesthe means of shifting said sleeve longitudinally upon the shaft A. Thereis also illustrated in Fig. 1 a ram (Z, the piston-rod d of which issecured to the sleeve 0 in a suitable manner, whereby steam, air, orwater power may be utilized to shift the sleeve 6. The flexible cable aafter passing over the sheaves a and l)" is carried through the bore band connected with the sleeve 0, as shown at 0 It is obvious that theoutward movement of the sleeve 0 either by means of the lever c or theram (Z will draw upon the cable a to operate the lever a when thebrake-band will be set, as before-mentioned.

Instead of the bore 6 in the shaft A the mortise b may be extended tothe end of the shaft in the form of a slot, as in Fig. l.

In Fig. 5 is shown a modified mechanism for moving the sleeve outward todraw the cable 00 The modified construction consists of a collar 6,splined on the shaft A and provided with a split collar 6 adjacent tothe collar 6, and also splined on the shaft is thelongitudinally-movable sleeve 6 equipped with a split collar e The cablea extending through the shaft A, is attached to the sleeve 6, as at e. Toggle-bars 6 connect the split collars e and c with alongitudinallymovable rod 6, which in turn may be connected with eithera hand-lever or ram.

The movement of the rod 6 as indicated by the arrow, will cause thesleeve 6 to be forced outwardly away from the collar 6, and so draw thecable (L5 to operate the clutch mechanism. The thrust of the collar 6 isagainst the fixed bearing f of the shaft.

Referring to Fig. 1, it is obvious that both the hand-lever and ram maybe used in the same device, or either one might be used without theother.

By this construction there is provided a means for operating the clutchwhich is posi- IOC tive in its action, cheap in construction, sim ple inits operation, capable of being either power or hand operated, andunlikely to get out of repair.

Having thus described my claim The combination of a driving and a drivenmember, a shaft upon which said members are mounted having an axial boreand a radial recess or mortise therein, a sheave extending into saidrecess and tangent with said axial bore, clutch mechanism between saiddriving and driven members, an operating device for said clutchmechanism, including invention, I

a flexible connection passing over said sheave and through said axialbore, a longitudinallymovable sleeve on said shaft, an engagementbetween said flexible connection and movable sleeve, and means forpositively moving said sleeve, substantially as specified.

In testimony whereof I have hereunto set my hand this 23d day ofSeptember, A. D. 1904.

GEORGE E. TURNER.

Witnesses:

LEwIs E. PETTIT, KARL S. KUMLER.

